According to the article, scientists can use sound to measure the changing temperature of the ocean. Which paragraph BEST supports this idea?(A)"So it's really important to track that energy in the climate system and track the warming of the ocean,"says Jörn Callies, an oceanographer at the California Institute of Technology.(B)Temperature also affects the speed of sound. Particles at higher temperatures have more energy andallow sound waves to travel more quickly. This means that sound travels faster in warmer water thancolder water and these differences in sound speed can reveal changing temperatures.(C)Scientists originally proposed using sounds produced by machines to measure ocean warming, but itwould impact marine animals, such as whales, that use sound to communicate. However, Wu and hiscolleagues showed they could use the natural sounds produced by earthquakes instead.(D)A fraction of a degree may not sound like a lot, but it represents a huge amount of heat. That's becauseit's the change in a body of water almost 3,200 kilometers (2,000 miles) wide and several kilometersdeep.2

Item 7 shakespeare often puts the audience in a situation where they know more than one of the characters does. how does shakespeare increase the tension in the four-lovers story line by giving the audience information that one or more of the characters does not have? the audience knows that hermia’s father really approves of lysander and there is no need for hermia and lysander to run away. this knowledge builds tension because the audience wonders if hermia and lysander’s relationship will survive a night in the woods. the audience knows that helena really hates hermia and wants to hurt her. this knowledge builds tension when helena tells demetrius of hermia’s plan to run away because the audience wonders if hermia will be caught and punished. the audience knows that lysander and demetrius are under the spell, but helena and hermia do not. this knowledge builds tension and makes the audience eager to see what will happen next. the audience knows that oberon is observing the lovers, but the lovers do not know. this knowledge builds tension because oberon falls in love with helena and decides to become a human so he can marry her.